LOS ANGELES — “The Man in Black” was dressed in blue as he rehearsed for a 1969 concert at San Quentin. The embroidered blue jumpsuit that Johnny Cash wore to practice caused a bidding war during a memorabilia auction Sunday, bringing in nearly 10 times what was expected.

The suit, expected to sell for $5,000, was eventually claimed for $50,000 by a collector from Belgium, said Darren Julien, president and chief executive of Julien’s Auctions in Beverly Hills. He would not name the buyer.

The auction of 321 lots sold for more than $700,000, nearly twice what was expected, Julien said Monday. A poster announcing Cash’s performance at the prison sold for $25,000, a 1968 passport for $21,875 and a Martin guitar for $50,000. A pair of Cash’s knee-high boots sold for $21,875.